Android App WebView中Vimeo Player的问题

在我的Android应用程序中,我创建了一个WebView来播放Vimeo视频.当我加载活动时,会显示vimeo视频的正确预览,但是当我尝试播放时,我会看到以下屏幕:

有时视频中的音频播放,但我从未收到视频.以下是我的活动内容:

if(mediaURL.toLowerCase().contains("vimeo")){
       Log.d(TAG, "adding viemo");
       final WebView vimeoPlayer = new WebView(MediaPreview.this);
       vimeoPlayer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
       vimeoPlayer.getSettings().setJavaScriptEnabled(true);
       vimeoPlayer.getSettings().setLoadWithOverviewMode(true);
       vimeoPlayer.getSettings().setUserAgentString("Android Mozilla/5.0 AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30");
       vimeoPlayer.setWebChromeClient(new WebChromeClient());
       vimeoPlayer.setWebViewClient(new WebViewClient());
       vimeoPlayer.getSettings().setAppCacheEnabled(true);
       vimeoPlayer.getSettings().setDomStorageEnabled(true);
       vimeoPlayer.getSettings().setPluginState(PluginState.ON);
       vimeo_url = mediaURL + "?player_id=player&title=0&byline=0&portrait=0&api=1&maxheight=480&max;
       Log.d(TAG, "vimeo_url: " + vimeo_url);
       vimeoPlayer.loadUrl(vimeo_url);
       // vimeoPlayer.loadDataWithBaseURL("", vimeo_url, "text/html", "UTF-8", null);
                     mediaHolder.addView(vimeoPlayer);;
}

我还没有看到在Android应用中使用Vimeo播放器的任何明确示例,所以如果有人让这个工作,那么非常感谢你的帮助!